萘酰亚胺荧光光纤传感膜选择性检测间二硝基苯  

Selective detection of m-dinitrobenzene by naphthalimide fluorescent fiber sensor

作　　者：沈安祺 闫则威 贾丽华[1] 杨瑞[1] 王金平[1] 郭祥峰[1,2] SHEN Anqi;YAN Zewei;JIA Lihua;YANGRui;WANG Jinping;GUO Xiangfeng(College of Chemistry and Chemical Engineering,Qiqihar University,Qiqihar 161006;Guangdong University of Petrochemical Technology,Maoming 525000)

机构地区：[1]齐齐哈尔大学化学与化学工程学院,齐齐哈尔161006 [2]广东石油化工学院,茂名525000

出　　处：《分析试验室》2020年第7期844-848,共5页Chinese Journal of Analysis Laboratory

基　　金：黑龙江省省属高校基本科研业务费资助科研项目(135109101,135209103,135309116,TSTAU-R2018006,YSTSXK201854)资助。

摘　　要：以4-(十二烷基氨基)-N-十二烷基萘酰亚胺(CCOQ)为荧光指示剂,邻苯二甲酸二丁酯(DBP)为增塑剂,聚氯乙烯(PVC)为基质,利用包埋技术,制备了一种选择性识别间二硝基苯(m-DNB)的荧光传感膜。结果表明,当m-DNB的浓度在0~0.5 mmol/L范围时,传感膜的荧光强度与m-DNB浓度呈良好的线性关系,线性相关系数R^2=0.9966,检出限6.1×10^-5mol/L。该传感膜具有优异的选择性和重现性,响应时间小于30s,同时不受pH及盐含量的影响。可用于自来水样中m-DNB的检测。An embedding technique was used to prepare a fluorescent sensoring film which could selectively recognize m-dinitrobenzene(m-DNB)by using polyvinyl chloride(PVC)as matrix,4-amino-dodecyl-Ndodecylnaphthalimide(CCOQ)as fluorescent indicator,and dibutyl phthalate(DBP)as plasticizer.The experimental results showed that the fluorescence intensity was linear with the concentration of m-DNB in the range of 0-0.5 mmol/L(R^2=0.9966)with a limit detection of 6.1×10^-5mol/L.The sensor film showed excellent selectivity and reproducibility with the response time of less than 30 s,and the response was not affected by pH and salt content.The sensor membrane can be used for the determination of m-DNB in water.

关 键 词：荧光 传感膜 萘酰亚胺 间二硝基苯 

分 类 号：O657.3[理学—分析化学]